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150 lines
4.7 KiB
CoffeeScript
150 lines
4.7 KiB
CoffeeScript
Model = require '../../src/flux/models/model'
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Attributes = require '../../src/flux/attributes'
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{isTempId} = require '../../src/flux/models/utils'
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_ = require 'underscore-plus'
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describe "Model", ->
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describe "constructor", ->
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it "should accept a hash of attributes and assign them to the new Model", ->
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attrs =
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id: "A",
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namespaceId: "B"
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m = new Model(attrs)
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expect(m.id).toBe(attrs.id)
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expect(m.namespaceId).toBe(attrs.namespaceId)
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it "should assign a local- ID to the model if no ID is provided", ->
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m = new Model
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expect(isTempId(m.id)).toBe(true)
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describe "attributes", ->
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it "should return the attributes of the class", ->
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m = new Model()
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expect(m.attributes()).toBe(m.constructor.attributes)
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describe "isSaved", ->
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it "should return false if the object has a temp ID", ->
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a = new Model()
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expect(a.isSaved()).toBe(false)
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b = new Model({id: "b"})
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expect(b.isSaved()).toBe(true)
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describe "fromJSON", ->
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beforeEach ->
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class Submodel extends Model
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@attributes: _.extend {}, Model.attributes,
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'testNumber': Attributes.Number
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modelKey: 'testNumber'
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jsonKey: 'test_number'
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'testBoolean': Attributes.Boolean
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modelKey: 'testBoolean'
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jsonKey: 'test_boolean'
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@json =
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'id': '1234'
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'test_number': 4
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'test_boolean': true
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'daysOld': 4
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'namespace_id': 'bla'
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@m = new Submodel
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it "should assign attribute values by calling through to attribute fromJSON functions", ->
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spyOn(Model.attributes.namespaceId, 'fromJSON').andCallFake (json) ->
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'inflated value!'
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@m.fromJSON(@json)
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expect(Model.attributes.namespaceId.fromJSON.callCount).toBe 1
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expect(@m.namespaceId).toBe('inflated value!')
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it "should not touch attributes that are missing in the json", ->
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@m.fromJSON(@json)
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expect(@m.object).toBe(undefined)
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@m.object = 'abc'
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@m.fromJSON(@json)
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expect(@m.object).toBe('abc')
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it "should not do anything with extra JSON keys", ->
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@m.fromJSON(@json)
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expect(@m.daysOld).toBe(undefined)
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describe "Attributes.Number", ->
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it "should read number attributes and coerce them to numeric values", ->
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@m.fromJSON('test_number': 4)
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expect(@m.testNumber).toBe(4)
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@m.fromJSON('test_number': '4')
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expect(@m.testNumber).toBe(4)
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@m.fromJSON('test_number': 'lolz')
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expect(@m.testNumber).toBe(null)
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@m.fromJSON('test_number': 0)
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expect(@m.testNumber).toBe(0)
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describe "Attributes.Boolean", ->
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it "should read `true` or true and coerce everything else to false", ->
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@m.fromJSON('test_boolean': true)
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expect(@m.testBoolean).toBe(true)
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@m.fromJSON('test_boolean': 'true')
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expect(@m.testBoolean).toBe(true)
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@m.fromJSON('test_boolean': 4)
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expect(@m.testBoolean).toBe(false)
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@m.fromJSON('test_boolean': '4')
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expect(@m.testBoolean).toBe(false)
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@m.fromJSON('test_boolean': false)
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expect(@m.testBoolean).toBe(false)
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@m.fromJSON('test_boolean': 0)
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expect(@m.testBoolean).toBe(false)
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@m.fromJSON('test_boolean': null)
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expect(@m.testBoolean).toBe(false)
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describe "toJSON", ->
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beforeEach ->
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@model = new Model
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id: "1234",
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namespaceId: "ACD"
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it "should return a JSON object and call attribute toJSON functions to map values", ->
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spyOn(Model.attributes.namespaceId, 'toJSON').andCallFake (json) ->
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'inflated value!'
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json = @model.toJSON()
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expect(json instanceof Object).toBe(true)
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expect(json.id).toBe('1234')
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expect(json.namespace_id).toBe('inflated value!')
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it "should surface any exception one of the attribute toJSON functions raises", ->
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spyOn(Model.attributes.namespaceId, 'toJSON').andCallFake (json) ->
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throw new Error("Can't convert value into JSON format")
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expect(-> @model.toJSON()).toThrow()
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describe "matches", ->
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beforeEach ->
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@model = new Model
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id: "1234",
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namespaceId: "ACD"
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@truthyMatcher =
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evaluate: (model) -> true
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@falsyMatcher =
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evaluate: (model) -> false
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it "should run the matchers and return true iff all matchers pass", ->
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expect(@model.matches([@truthyMatcher, @truthyMatcher])).toBe(true)
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expect(@model.matches([@truthyMatcher, @falsyMatcher])).toBe(false)
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expect(@model.matches([@falsyMatcher, @truthyMatcher])).toBe(false)
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it "should pass itself as an argument to the matchers", ->
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spyOn(@truthyMatcher, 'evaluate').andCallFake (param) =>
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expect(param).toBe(@model)
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@model.matches([@truthyMatcher])
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